Could it be one of the three that hold the engine cover mount to the intake manifold?
Pretty good guess!
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Could it be one of the three that hold the engine cover mount to the intake manifold?
Its black and no. I didn’t take any bolts out of the intake manifold.No. The job is incomplete and this is now a game.
It looks black on my screen- is it?
Could it be one of the three that hold the engine cover mount to the intake manifold?

Its black and no. I didn’t take any bolts out of the intake manifold.
EDIT: it’s NOT black! Sorry for any confusion...![]()
I didn’t know you had a fetish for the small black ones.Tease.
LolI didn’t know you had a fetish for the small black ones.![]()
I swapped my logo door lights out to the red ones today, I want my 10 hp back and add +10 hp. Did you get my PM @Bear77 ? Just need $20 and I’ll ship them out.
Pics...?I swapped my logo door lights out to the red ones today, I want my 10 hp back and add +10 hp. Did you get my PM @Bear77 ? Just need $20 and I’ll ship them out.
Yup! Pics or it didn't happenPics...?
I didn’t know you had a fetish for the small black ones.![]()

It s solid now, not so much before. The OEM part number for the filler tube is 12574386. It has to rotate a full 180* to be removed or installed and I think since my overflow tank is relocated and is in the way of doing that, it never got installed right. IMO it’s easier to install it with the cover installed so you can twist it good and seat the big o-ring without the valve cover moving. I grab it with both hands, turn and push, then pull to remove, or push slightly when installing so the tabs engage.
There’s always that one damn bolt left over when you complete a project like this.
View attachment 249401
The picture on Amazon just has it at a weird angle so it looks funny. It’s the right part number. The o-ring and cover are separate parts. Here’s a link to the exploded parts drawing for your 07 5.3 Tahoe.What about removing it with the cover installed? Have you ever done that? Is that the part number you ordered? I'm looking at it on Amazon and there is no O-ring and doesn't look right to me. What about the filler cap?
There are a couple of unused threaded holes in the top of the radiator support. Whenever that happens to me I stick them in one of the holes so it's there if I need it.![]()
Oh, and yes it’s easier to remove/ install it with the valve cover installed, I thought I mentioned that earlier.
There’s no locking tab on any that I’ve noticed. On both my trucks I just turn and remove them. You might have to push down to compress the o-ring but I haven’t had to do that at least that I remember.How do you remove it without breaking the locking tab?
That's good to know about Justin.I was talking to my bud Roger Vinci @Vinci High Performanceand it turns out he knows Justin @BlackBearPerf pretty good. This is what he said about him in his last email to me. Oh, and I heard from Shannon that the tune should be done early this week.
“I didn’t remember you indicting Justin was doing the tuning. He’s as good as there is. No one else I would ever recommend. I’m sure he’s super busy, as we are as well with the COVID thing going on. We are now two to three weeks behind on cam builds.”
I guess I don’t need to worry that Justin will get the most out of this cam.
Awesome!I was talking to my bud Roger Vinci @Vinci High Performanceand it turns out he knows Justin @BlackBearPerf pretty good. This is what he said about him in his last email to me. Oh, and I heard from Shannon that the tune should be done early this week.
“I didn’t remember you indicting Justin was doing the tuning. He’s as good as there is. No one else I would ever recommend. I’m sure he’s super busy, as we are as well with the COVID thing going on. We are now two to three weeks behind on cam builds.”
I guess I don’t need to worry that Justin will get the most out of this cam.